import 'package:flutter_riverpod/flutter_riverpod.dart';
import '../models/stream_entry.dart';
import '../services/m3u_service.dart';

final m3uServiceProvider = Provider<M3UService>((ref) => M3UService());

final channelListProvider =
    StateNotifierProvider<ChannelListNotifier, AsyncValue<List<StreamEntry>>>(
        (ref) {
  final svc = ref.watch(m3uServiceProvider);
  return ChannelListNotifier(svc);
});

final selectedChannelProvider = StateProvider<StreamEntry?>((ref) => null);

class ChannelListNotifier extends StateNotifier<AsyncValue<List<StreamEntry>>> {
  final M3UService _svc;
  ChannelListNotifier(this._svc) : super(const AsyncValue.data([]));

  Future<void> fetch(String url, {bool force = false}) async {
    state = const AsyncValue.loading();
    try {
      final entries = await _svc.fetch(url, forceRefresh: force);
      state = AsyncValue.data(entries);
    } catch (e, st) {
      state = AsyncValue.error(e, st);
    }
  }

  Future<void> refresh(String url) async => fetch(url, force: true);
}